Cross-winding machine.



Patented Sept. 23, I902 a. VOIGT. GROSS WINDING MACHINE. (Aflplication filed June 19, 1900.)

(No Model.)

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FI -ICE RUDOLPH VOIGT, OF CHEMNITZ, GERMANY.

CROSS WINDING MACHINE.

SPEGIFICATION formingpart of Letters Eatent No. 709,653, dated September 23, 1902.

Application filed June 19, 1900. Serial No. 20,843. (No model.)

To a717 whom, it may concern.-

Be it known that I, RUDOLPH VOIGT, a subject of the King of Saxony, residing in Chemnitz, in the Kingdom of Saxony and Empire of Germany, have invented certain new and useful Improvements in Gross-Winding Machines, of which the following is a specification.

This invention relates to improvements in cross-winding machines.

The object of the invention is to provide a machine capable of cross-winding a bobbin in a perfectly accurate and precise manner.

For this purpose the invention consists in the combination, in a cross-winding machine,

of a supporting frame, a bobbin spindle mounted in the same, means for rotating said bobbin-spindle, a thread-guide adjacent said spindle, means for reciprocating said threadguide, and means controlled by the diameter of the bobbin for changing the relative speeds of said rotating and reciprocating means.

In the accompanying, drawings, Figure 1 is a side elevation of my improved machine. Fig. 2 is an end view. Fig. 3 is a top view. Figs. 4 to 6 are detail views of a modification, and Figs. 7 and 8 are detail views of the mechanism shown in Figs. 1, 2, and 3.

Similar characters of reference indicate corresponding parts.

Referring to the drawings, 1, 2, and 3 represent the frame of my improved machine. In the frame is journaled in suitable bearings a shaft 17 and a spindle 4, adapted to receive a suitable shell for receiving the thread to be wound. Upon the spindle 4 is fixed a conepulley 12, which communicates by a belt 14 with the corresponding cone-pulley 13, which is mounted on a counter-shaft journaled in suitable bearings of the frame. The shaft of the cone-pulley 13 is provided at one end with the pinion 15, meshing with the gear 16 upon the shaft 17. To the opposite end of the shaft 17 is fixed a cam 10, which engages a threadguide 5, which is adapted to reciprocate in a slide 11 of a balanced thread-carrying arm 18 19 20, which is loosely mounted on the shaft 17 and provided with a projecting lever 21, carrying near its outer end a Weight 22, said lever engaging a slot in a cam-plate 23, which is suitably guided upon the frame of the machine and bears against a roller 25 upon the shaft 26, which is mounted in suitable bear ings in the frame and adapted to move longitudinally in the same, as well as to be turned axially therein. The cam edge of the camplate 23 may be of any desired contour,aocording to the size of the thread and size of bobbin to be wound. Said shaft 26 carriesa beltshifter 9, which is not, however, fixed to said shaft, but is slidable thereon and serves for shifting the driving-belt from the tight pulley 7, fixed to the shaft 4, to the loose pulley 8. The said shaft 26 is screw-threaded over a portion of its length,opposite the cone-pulley 12,and upon said screw-threaded portion carries a belt-guide 29, which engages the belt 14 for determining the position of the same upon the cone-pulleys. The cone-pulleys are made only slightly conical, approximately as indicated in the drawings.

For cross winding a bobbin upon this machine the bobbin is started upon the spindle and the driving-belt thrown upon the pulley 7, which thereby rotates the spindle and the cone-pulleys, gears, and cam 10, so that the thread-guide is reciprocated by the latter and produces the regular winding of the thread or yarn 6. The shaft 26 is not rotated. As the diameter of the bobbin 24 increases the arm 21 is lifted, causing the cam-plate 23 to rise and draw the shaft 26, so that the belt 14 is shifted toward the ends I) of the cone-pulleys l2 and 13, thereby increasing thespeed of the cam 10 relatively to the speed of the bobbin, whereby the even and compact winding of the thread is obtained as the bobbin increases in size. 'When the bobbin is complete, the beltshifter 9 is actuated by the attendant or by any suitable mechanism, so as to throw the belt upon the loose pulley 8, whereby the ma chine is brought to a stop, when the bobbin may be removed and a new one started. A spring 27 serves to keep the roller 25 in contact with the cam-plate 23 and to return the shaft 26 to its original position when the machine is stopped and the bobbin removed. By turning the shaft 26 the position. of the belt-guide 29 upon the shaft may be altered, and thereby the position of the belt 14 upon the cone-pulleys 12 and. 13 correspondingly altered, either toward the end I) or toward the end 0., thereby setting the relative speeds of the bobbin and cam 10 as may be required,

according to the particular size of the thread to be wound. By the mechanism described any desired size of thread may be wound to a bobbin of any diameter within the capacity of the machine, the thread being wound accurately and very closely and compactly.

In Figs. 4, 5, and 6 is shown a modification of the mechanism for producing the shifting of the belt 14. This mechanism consists, in brief, of a lever 32, mounted upon the shaft 17, which is pushed outwardly as the bobbin increases in thickness. To the lever is attached a chain 31, which passes over a cam 30, the hub of which is in the form of a sleeve mounted upon the shaft 26 and engaging at its outer screw-threaded surface the frame 1 of the machine, as shown in Fig. 5. In this case upon the shaft 26 is fixed a weight 33, adapted to draw said cam to its lowermost position, as shown in Fig. 4. The sleeve of said cam 30 abuts at one end against the adjusting-nuts of the shaft 26 and at its other end against an enlargement or shoulder of said shaft, and by the turning of said sleeve the longitudinal shifting of the shaft 26 is accomplished. The cam 30 is turned by the chain 31, which is pulled by the lever 32 as the bobbin increases in thickness. In Fig. 6 the cam 30 is not provided with a screwthreaded sleeve, but the sleeve of the same is made plain, and a thumb-screw is provided, as shown at the left-hand side of Fig. 6, by which the cam 30 is connected in any deslred position upon the shaft 26. In this case the cam 30 is rotated in the same manner as before by the chain 31, attached to the lever 32, and causes the turning of the shaft 26, and thereby the longitudinal movement of the belt-guide 29. This modified for silk or other similar thread. In such cases the mechanism described is preferred on account of its simplicity.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- In a cross-Winding machine, the combination of a supporting-frame, a bobbin-spindle journaled in the same, a thread-guide adjacent said spindle, a shaft journaled in said frame, and carrying a cam engaging said thread-guide for reciprocating the same, a cone-pulley on said spindle, a counter-shaft, a cone-pulley on said counter-shaft, a belt connecting said cone-pulleys, gearing connecting said counter-shaft with the shaft of the cam, a longitudinally-movable shaftmounted in said frame, and provided with a belt-guide for said belt, a cam-plate engaging said longitudinally-movable shaft, mechanism connected with the thread-guide and controlled by the bobbin and engaging said cam-plate, for actuating the same, and a driving-pulley located on the shaft of the bobbin-spindle, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

RUDOLPH VOIGT.

Witnesses:

BERNHARD BLANK, H. THIELE. 

